Fruit-spray gun



Patented May 7, 1929.

ai sara FRUIT-SPRAY GUN.

Application lerl December 2G, 1927. Serial No. 241,374'.

By way of explanation, it may be statedA thatl there are on the market,thousands of nozzles or guns, socalled, which are usedfor spraying fruittrees. Such articles are provided with a thin disk having a smallorifice through which the liquid is discharged. This orifice oftencloses up, and it is necessary to remove the disk and clean out theorifice. In order that the disk may be re-` moved, the How through thenozzle must Abe stopped, and this invention `aims to provide a simpleauxiliary valve mechanism for stopping the flow through the nozzle orgun, as and for thc purpose explained. f

Itis within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the inventionappertains. y

lVith the above and other objects in view which will Vappear asthedescription pro-V ceeds, the invention resides in the combination andarrangement of parts and in the f details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein'disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings Figure 1 shows in side elevation, a spray gun equippedwith the device forming the subject matter of this application; and

, Figure 2 is a longitudinal section of the gun on an enlarged scale,parts being in elevation, and parts being broken away.v

There are inluse at the present time, thousands of spray guns includinga removable disk 3 having a reduced opening 4 through which the liquidproceeds. The construcbodied varies through wide limits, but spray guns,generally, are reducible to the general type shown in the drawings, thespray gun there being shown as including a body B made up of a tubularmember 1 on which a head 2 is mounted, the disk 3 being held on theforward end of the head 2 by any suitable detachable means 5, such as athreaded ring.

The rear end of the tubulaimember 1 is contion of the gun wherein thedisk 3 is em Way, with thecasingG. On the forward end of the plunger 9there is a main valve 12'which cooperates with the disk 3 to close theopening 4 when the plunger 9 is rotated by means' of the handle 10, andis advanced because of the threaded connection shown at 11. It is withsuch a gun, or with a similarly constructed gun, that the device formingthe subject matter of this'application is adapted to be assembled.

1n carrying out the present invention, a

tubular bushing l5, made of brass or any otherv suitable material, issecured in any preferred way in the forward end of .the tubularmember 1. The bushing or tubular element 15 has an enlarged head 16which abuts against the forward end of the tubular -member 1, or againstthe adjacent portion of the casing 6, the enlarged head 16 affordingreinforcement, for the format-ion of a Haired seat 17 adapted tocooperate with the conical part 18 of an auxiliary valve 19 secured tothe plunger 9 behind the main valve 12 and in spaced relation to thevalve 12.

When the operator wishes to stop the flow through the body of the gun,so that he can take od the ring vand remove the disk 3 to clean out theopening i in the disk, the plunger 9 simply is retracted unt-il theconical partV 18 of the plunger cooperates with the seat 17 in thebushing .15, and then the flow through the gun ceases. It has beenpurposed heretofore to place a cut-off valve (not shown) in thehose 14that is attached to thelateral inlet 7, but such a valve isinconvenient, in

that it is exposed, likely to get out oforder, f

and Vlikely to be operated accidentally. In the device formingthe'rsubject matter of this application, the simple auxiliaryvalve 19 ishoused within the body of the gun and will last a long time, withoutgetting out of order or requiring attention. rlhe bushingv 15 and vtheauxiliary valve 19 may be applied readily to guns that arc alreadylmade, or the parts specified may, of course, be built into a new gun.The manufacturer' or the useris not called upon to throu1 away anysatisfactory gun that he has already, since the valvev19 p may beapplied to the plunger of any standard spray gun, and the bushing 15 maybe secured in the tubular part of any standard vided With a thickenedhead in which a seat is formed, the head abutting against the end.

of the tubular member, and a valve on the plunger and cooperating, withthe seat to close the .flow of liquidr through. the gunI when theplunger is retracted.V

2. In a spray gun Comprising abody includinga tubularmemben, ahead onthe tubular member, a removable disk having a-dscharge opening, meanstorholding the disk detachably on the head, and a longitudinally movableplunger that is advanced to close the opening; a'v tubular bushingsecured in the forward end of the tubular member and supplied With aSeat at its outer end, and a valve mounted on the plunger and located inthe head, the valve Cooperating with the seat to stopthe flow throughthe gun Wheny the plunger is retracted.

In'testimonythat I elaim theforegoing as my own, I have hereto affixedmy signature.

GEQRGE C. BROVN,

